Improvement in window-blinds



-by means of short tenons C O at each end,

- UNITED STATES PATENT OFFICE.

IMPROVEMENT IN -WINDOWBLINDS.

Specification forming part of Letters Patent No. 56,267, dated July 10, 1866.

To all whom it may concern:

Be it known that I, W. F. REDDING, of Saratoga Springs, county of Saratoga, State of New York, have invented a new and useful Improvement in Blinds, and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings, forming part ot' this specification.

The present invention relates to that class of window-blinds in which the several slats composing' the blind are hung at each end by tenons in the blind-frame; and it consists in a novel manner of hanging the slats in the blindframe, by means of which, in case any one of their tenons should become broken off, thus causing the slat to hang or sag at one end, it can be adjusted to its proper position, as will be obvious from the following detail description thereof, reference being had to the accompanying plate of drawings, in which- Figure l is a front View of a portion of a blind, showing it in broken section at a point where one tenon of a blind-slat is hung in it, and illustrating my new mode of suspending the same; and Fig. 2, a section taken in the plane of the line @c w, Fig. l.

Similar letters of reference indicate like parts.

A in the drawings represents the blindframe, having a series of slats, B, hung in it as in ordinary blinds of a similar class; but as these tenons, which form a part of the slats, oftentimes become broken from use, thus causing such end of the slats to sag or drop down upon the slat next below, the inconvenience and disadvantage of which in the Working of the blind are obvious, the object of the present invention, as has been heretofore stated, is to provide a means by which such ends of the slats which have their tenons broken can be rehun g in the blind-frame, which mode of hanging is shown as applied to one end of the blind-slat lettered D in the drawings, and consists in inserting within the mortise or socket E of the blind-frame for the ordinary tenon a spiral spring, F,through which extends a short spindle, G, having` a shoulder or collar, H, which bears agail'ist the outer end of the said spring. rlhis spindle G constitutes the tenon of the slat, and by its end I is inserted in a hole, J, of the end of the slat, passing through a cap-plate, K, secured to such end of the slat.

By means of the above-described arrangement for suspending` or hanging a blind-slat in the frame, it is plainly apparent that such slats as have eitherone or both of their tenons broken can be rehung and adjusted in position in as complete and perfecta manner as With their original tenons, the importance and advantagespf which are obvious, the spiral spring serving not only to hold the slat firmly in position at whatever angle it may be inclined, but to secure the tenori-spindle to the slat, as is'manifest without any further explanation.

I claim as new and desire to secure by Letters Patent- The combination of the spindle G, having collar II and spiral spring F, when arranged in and connected to the slat and frame of a blind, substantially as and for the purpose described.

W. F. REDDING.

Witnesses:

A. D. WAIT, J oHN SHIPMAN. 

